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| author | Pravin B Shelar <pshelar@nicira.com> | 2013-02-11 09:27:41 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-02-13 13:30:10 -0500 |
| commit | c9af6db4c11ccc6c3e7f19bbc15d54023956f97c (patch) | |
| tree | c596e747d8940b848931ac31701e245a6c0efaf6 /net/ipv6 | |
| parent | b8fa4100350432504df438014e2e5e9c1bbb6325 (diff) | |
| download | blackbird-op-linux-c9af6db4c11ccc6c3e7f19bbc15d54023956f97c.tar.gz blackbird-op-linux-c9af6db4c11ccc6c3e7f19bbc15d54023956f97c.zip | |
net: Fix possible wrong checksum generation.
Patch cef401de7be8c4e (net: fix possible wrong checksum
generation) fixed wrong checksum calculation but it broke TSO by
defining new GSO type but not a netdev feature for that type.
net_gso_ok() would not allow hardware checksum/segmentation
offload of such packets without the feature.
Following patch fixes TSO and wrong checksum. This patch uses
same logic that Eric Dumazet used. Patch introduces new flag
SKBTX_SHARED_FRAG if at least one frag can be modified by
the user. but SKBTX_SHARED_FRAG flag is kept in skb shared
info tx_flags rather than gso_type.
tx_flags is better compared to gso_type since we can have skb with
shared frag without gso packet. It does not link SHARED_FRAG to
GSO, So there is no need to define netdev feature for this.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/ip6_offload.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c index d141fc32a2ea..f26f0da7f095 100644 --- a/net/ipv6/ip6_offload.c +++ b/net/ipv6/ip6_offload.c @@ -100,7 +100,6 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, SKB_GSO_DODGY | SKB_GSO_TCP_ECN | SKB_GSO_TCPV6 | - SKB_GSO_SHARED_FRAG | 0))) goto out; |
